I am soooooo confused

So the first one was last night , during the day I was getting bfn... but I tested around 11-12am and got that very very very faint line ...however I took a test this morning it was negative (using pregmate test ) and I tested again just now , with first response and pregmate (the bottom 2 Test) I used same urine for both ! First response it’s a negative but pregmate test it shows a faint line as a positive that’s very confusing esp because I thought first response would be more sensitive and accurate ...